I echo the performance problems. I used a Drupal 6- based install profile. Performance to the end user is boosted through caching, but is abyssmal for authenticated users (read: CMS administrators). The site receives very little traffic, yet sometimes takes 30 seconds for page draws and content submissions. I suspect the bottleneck is at the MySQL level, but cannot confirm. DH, is there a way to analyze individual sites and recommend how to increase DB throughput?